Results 71 to 80 of about 1,394 (221)
Alexandria Engineering JournalWind energy harvesting faces challenges in turbulent, low-speed, and variable wind conditions, particularly in urban or complex terrain environments. Cross-axis wind turbines (CAWTs) aim to combine advantages of horizontal-axis wind turbines (HAWTs) and ...
Christopher Clement Rusli +4 more
doaj +1 more source
Archive of Mechanical Engineering, 2017 Small-scale vertical-axis wind turbines can be used as a source of electricity in rural and urban environments. According to the authors’ knowledge, there are no validated simplified aerodynamic models of these wind turbines, therefore the use of more ...
Rogowski Krzysztof +2 more
doaj +1 more source
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee +3 more
wiley +1 more source
Interaction Between Vortex‐Induced Vibrations and Base Vibrations in Piezoelectric Harvesters
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT In the present era, powering sensors using green energy is a significant challenge. One promising solution for the power supply of small sensors relies on piezoelectric energy harvesters excited by vortex‐induced vibrations (VIVs) generated by wind.
Michele Tonan +3 more
wiley +1 more source
Wind Booster Optimization for On-Site Energy Generation Using Vertical-Axis Wind Turbines. [PDF]
Sensors (Basel), 2021 Moreno-Armendáriz MA +6 more
europepmc +1 more source
Vertical axis wind turbine control strategy [PDF]
, 1981 Early expensive in automatic operation of the Sandia 17-m vertical axis research wind turbine (VAWT) has demonstrated the need for a systematic study of control algorithms. To this end, a computer model has been developed that uses actual wind time series and turbine performance data to calculate the power produced by the Sandia 17-m VAWT operating in ...
openaire +2 more sources
Insights Into the Mechanisms Controlling the Residual Strength of Bio‐cemented Sands
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Microbially induced carbonate precipitation (MICP) is an emerging technique for enhancing the mechanical properties of granular soils. Although several experimental studies have reported increased shear strength in MICP‐treated soils at both peak and residual states, other findings have shown reductions in residual strength compared to ...
Aoxi Zhang +3 more
wiley +1 more source
Power coefficient measurements of a novel vertical axis wind turbine
Energy Science & Engineering, 2019 Wind tunnel experiments were performed to evaluate the power coefficients of three vertical axis wind turbines (VAWTs), namely, (a) conventional VAWT (two‐bladed troposkien shape), (b) novel 50% shifted troposkien shape‐vertical axis wind turbine (50 ...
Doma Hilewit +4 more
doaj +1 more source
VERTICAL AXIS OFFSHORE WIND TURBINE
, 2020 MAS154
Skjerdal, Tore Totland, Viken, Kjetil
openaire +1 more source
Development of Vertical Wind Turbine Blades Using 4D Printing of Composites
Polymer Composites, EarlyView.Vertical axis wind turbine: White blade: Commercial. Black blade: Composite. ABSTRACT This paper presents the procedure to make vertical wind turbine blades using the technique of 4D printing of composites (4DPC). The blades are made using carbon/epoxy composite materials with a fiber volume fraction of about 60%.
Emad Fakhimi, Suong Van Hoa
wiley +1 more source